Toyotomi Laser 300 Service Manual page 26

L A S E R L A S E R
Section 4
Control Circuit Board
4-2
Time Chart
No Item
4 Burner thermistor
detection
5
Fuel pump frequency control
H combustion
H1 combustion
M combustion
M1 combustion
M2 combustion
L combustion
6 Blower motor control
Speed (1 minute average)
1
High (H)
Medium (M)
(M1)
(M2)
Low (L)
(L1)
24
S E R V I C E M A N U A L
H E A T I N G H E A T I N G
Specification
trouble A：200 ± 40k When
pre-combustion timing (T7), shift to extinguishing
B：450 ± 90k
process and stop operation.
Display E- 13
Thermistor used is B constant 5250; resistance at 25
deg. C is 8.02 K.
A：15.970 ± 0.5Hz
B：20.540 ± 0.5Hz
A：14.373 ± 0.5Hz
B：18.486 ± 0.5Hz
A：11.380 ± 0.5Hz
B：14.263 ± 0.5Hz
A：11.380± 0.5Hz
B：14.263 ± 0.5Hz
A： 7.985± 0.5Hz
B：10.269 ± 0.5Hz
A： 6.330± 0.5Hz
B： 7.990 ± 0.5Hz
A：2900 ± 1.4%rpm
B：3200 ±1.4%rpm
A：2550 ±1.4%rpm
B：2550 ±1.4%rpm
A：2550 ±1.4%rpm
B：2700 ±1.4%rpm
A：2350 ±1.4%rpm
B：2500 ±1.4%rpm
A：1700 ±1.4%rpm
B：1800 ±1.4%rpm
A：1500 ±1.4%rpm
B：1500 ±1.4%rpm
S Y S T E M S S Y S T E M S
Trouble Shooting
Conditions
abnormal combustion is detected after
Remarks